KPI in LTE Radio Network

7/25/2019 KPI in LTE Radio Network

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http://www.linkedin.com/pub/ray-khastur/36/965/b7a

KPI in LTE Radio Network


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4G LTE - RF Optimization Objects and Tar

KPI System Overview

LTE KPIs

Accessability Retainability Mobility Laten

RRC

SETUP SR

ERAB

Setup SR

(VoIP/ALL)

Call Setup

SR

(VoIP/ALL)

Call Drop

Rate

(VoIP/ALL)

Call Setup

Complete

Rate(VoIP/ALL)

HHO SR

( Intra/Inter

Frequency)

HO in SR

Inter-RATHHO SR

Acces

Laten

Servic

Laten

InterruLaten

Radio

Network

Unavailabil

ity Rate

Availability

Cell UL/DL

Traffic

Volume

Radio

Bearer

Number

Utilization

Radio Network KPI :

Focus on the radio network performance

Ser

Focus on t

UL/DL

RB

Utility

Rate

Traffic


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Accessibility (1) RRC Setup Success Rate

RRC Setup Success Rate (service)

The RRC setup procedure is trigged by different reasons as identified by the establishmentCa

the RRCConnctionRequest message: emergency, highPriorityAccess, mt-Access, mo-Signalling

delayTolerantAccess-v1020 .The UE sets the establishmentCauseand received by eNodeB. Causes except mo-Signalling a

categorized as service related ones, and the cause of mo-Signalling is categorized as signal re

This KPI evaluates the RRC setup success rate with service related causes in a cell or cluster.

%100_

__ Service

service

service

AttemptConnectionRRC

SuccessConnectionRRCSSRRRC

RRC Setup Success Rate (Signal)

This KPI evaluates the RRC setup success rate with signal related

causes (mo-Signalling)in a cell or cluster.

%100_

__ Signal

Signal

Signal

AttemptConnectionRRC

SuccessConnectionRRCSSRRRC


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Accessibility (2) Counter Mapping for RRC SSR

L.RRC.ConnReq.Att

L.RRC.ConnReq.Succ


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Accessibility (3) QCI Definition

LTE-SAE QoS Class Identifier

There are 9 QCIs defined in 3GPP TS 23.203. Each of QCI has its QoS requirements, and each

has the attribute of QCI.


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Accessibility (4) ERAB Setup Success Rate

VoIP ERAB Setup Success Rate

This KPI can be used to evaluate the ERAB setup success

rate of VoIP service (QCI 1 service) in a cell or cluster.

_ __ _ 100%

_ _

VoIP ERAB SetupSuccessVoIP ERAB SSR

VoIP ERAB SetupAttempt

ERAB Setup Success Rate (All)

This KPI can be used to evaluate the ERAB setup successrate of all services including the VoIP service in a cell or

a cluster.

__ ( ) 100%

_

ERAB SetupSuccessERAB SSR ALL

ERAB SetupAttempt


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Accessibility (5) Counter Mapping for ERAB SSR

ERAB Se

Counte

ERAB Se

ERAB SeCounte

ERAB


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Accessibility (6) Call Setup Success Rate

_ 1 _( ) * *

_ 1 _

Service

Service

RRC ConnectionSuccess S SIGConnectionEstablishSuccess ERAB SetupSucCSSR ALL

RRC ConnectionAttempt S SIGConnectionEstablishAttempt ERAB SetupAtte

VoIP Call Setup Success Rate (VoIP CSSR)

This KPI evaluates the success rate of the whole setup procedure for VoIP service (QCI 1

service) in a cell or cluster, which mainlyincludes three phases : RRC setup phase, S1

Signaling connection establishment phase and VoIP E-RAB setup phase:

_ 1 _ __ * *

_ 1 _ _

Service

Service

RRC ConnectionSuccess S SIGConnectionEstablishSuccess VoIP ERAB SVoIP CSSR

RRC ConnectionAttempt S SIGConnectionEstablishAttempt VoIP ERAB S

Call Setup Success Rate (ALL)

This KPI can be used to evaluate the call setup success rate of all services including the VoIPservice in a cell or a cluster. This KPI mainlyincludes three phases : RRC setup phase, S1 Signa

connection establishment phase and service E-RAB setup phase:


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Accessibility (7) Counter Mapping for CSSR


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4G LTE - RF Optimization Objects and Targ

Retainability (1) Call Drop Rate

VoIP Call Drop Rate

This KPI can be used to evaluate the call drop rate of VoIP service (QCI 1 service) in a cell or clus

happen when eNode initiate active ERAB (with data in buffer) release process by E-RAB Release

Context Release Requestmessage with Cause field with abnormal reasons (the cause other tha

Detach,User Inactivity, cs fallback triggered, UE Not Available For PS Service,or Inter-RAT redire

other E-RAB releases are consider as normal E-RAB release.

Call Drop Rate(ALL)

This KPI can be used to evaluate the call drop rate of all services in

a cell or a cluster, including VoIP service.

_

___

ERABVoIP

AbERABVoIPCDRVoIP

_ Re( ) 100%

_ Re

ERAB Abnormal leaseCDR ALL

ERAB lease

Call Drop Rate(Always Online)

This KPI can be used to evaluate the call drop rate of all the services, including the VoIP service

online state is active. In always online state, the E-RAB number of UE entering the un-synchron

synchronous state will be considered for the KPI calculating.

_ 100%Re

ERABAbnormalReleaseOfAlwaysOnlineAlwaysOnline CDR

ERAB leaseOfAlwaysOnline


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Retainability (2) Counter Mapping for Call Drop Rate

Normal and Abnormal

release Counters based on

the cause

No

re

th


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Retainability (3) - Call Setup Complete Rate

_ 1 _ ( ) * * *

_ 1 _

Service

Service

RRC ConnectionSuccess S SIGConnectionEstablishSuccess ERAB SetupSuccess ERABCSTR ALL

RRC ConnectionAttempt S SIGConnectionEstablishAttempt ERAB SetupAttempt E

_ 1 _ _ _ __ * * *

_ 1 _ _

Service

Service

RRC ConnectionSuccess S SIGConnectionEstablishSuccess VoIP ERAB SetupSuccess VoIP ERAB NVoIP CSTR

RRC ConnectionAttempt S SIGConnectionEstablishAttempt VoIP ERAB SetupAttempt Vo

_ IP ERAB

VoIP Call Setup Complete Rate (VoIP CSTR)This KPI evaluates the call Setup Complete Rate for VoIP service (QCI 1 service) in a cell or clus

which means the rate of the VoIP service can be normally terminated once user do the attemp

setup the service. And it can include4 phases: RRC setup phase, S1 Signaling connection

establishment phase, VoIP E-RAB setup phase and VoIP service E-RAB release phase;

Call Setup Complete Rate (ALL)The similar as upper KPI, this KPI will evaluate the success rate in totally for 4 phases: RRC setu

S1 Signaling connection establishment phase, service E-RAB setup phase and service E-RAB rele

phase;

Call Setup Complete Rate (Always Online)

The similar as upper KPI, this KPI will evaluate the success rate in totally for 4 phases: RRC setu

S1 Signaling connection establishment phase, service E-RAB setup phase and service E-RAB re

phase (when the always online state is active);_ 1 _

( ) * * *_ 1 _

Service

Service

RRC ConnectionSuccess S SIGConnectionEstablishSuccess ERAB SetupSuccess ERABAbnormalReleaseOCSTR AlwaysOnline

RRC ConnectionAttempt S SIGConnectionEstablishAttempt ERAB SetupAttempt

ReERAB leaseOfAlw

b l ( ) f


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Retainability (4) - Counter Mapping for CSCR

b l ( ) d ( )


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Mobility (1) Intra-LTE Handover (Out) Success RateIntra-frequency Handover Out Success Rate

This KPI can be used to evaluate the intra-frequency handover

out success rate in a cell or cluster.

%100_

_

__

ptHOOutAttemIntraF

ssHOOutSucceIntraF

SRHOOutIntraF

Inter-frequency Handover Out Success RateThis KPI can be used to evaluate the inter-frequency handover

out success rate in a cell or cluster.

%100_

___

ptHOOutAttemInterF

ssHOOutSucceInterFSRHOOutInterF

M bili (2) C M i f I LTE HO SR


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Mobility (2) Counter Mapping for Intra-LTE HO SR

Handover Attempt Counters

Handover Success Counters

M bilit (3) I t LTE H d I S R t


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Mobility (3) - Intra-LTE Handover In Success Rate

Handover In Success Rate

This KPI can be used to evaluate the handover in success

rate in a cell or cluster.

%100_ tHOInAttemp

sHOInSuccesSRHOIn

M bilit (4) C t M i f I t LTE HO I SR


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Mobility (4) - Counter Mapping for Intra-LTE HO In SR

HO in Attempt Counters

HO in Success Counters

M bilit (5) I t RAT H d S R t


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Mobility (5) Inter-RAT Handover Success Rate

%100_2_

_2__2_

AttemptOutGLIRATHO

SuccessOutGLIRATHOSRGLIRATHO out

Inter-RAT Handover Success Rate (LTE to WCDMA)

This KPI can be used to evaluate the inter-RAT handover success rate

from LTE to WCDMA in a cluster.

%100_2_

_2__2_

AttemptOutWLIRATHO

SuccessOutWLIRATHOSRWLIRATHO out

Inter-RAT Handover Success Rate (LTE to GERAN)

This KPI can be used to evaluate the inter-RAT handover success rate from LTE to GERAN in a cl

Mobility (6) Inter RAT Handover Success Rate


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Mobility (6) Inter-RAT Handover Success Rate

Inter-RAT Handover Success Rate (LTE to CDMA2000)

This KPI can be used to evaluate the inter-RAT handover success rate from

LTE to CDMA2000 in a cluster.

_ 2 __ 2 _ 100%

_ 2 _out

IRATHO L C SuccessOutIRATHO L C SR

IRATHO L C AttemptOut

Mobility (7) Counter Mapping for Inter RAT HO SR


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Mobility (7) Counter Mapping for Inter-RAT HO SR

B point , HO attempt, and

distinguish the target system by anelement targetRAT-Type in the

message

C point, HO

Success


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KPI in LTE Radio Network

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